अम्ल वर्षा (एसिड रेन) के लिए मुख्य रूप से निम्नलिखित में से कौन से प्रदूषक जिम्मेदार हैं?

Photochemical smog is brown in color and is often referred to as 'brown air smog'. This characteristic brown color is primarily due to the presence of:

Excessive runoff containing nitrates and phosphates into water bodies leads to nutrient enrichment, which is termed as: